CN103694558A - Phenolic aldehyde sphere/polypropylene composite material and preparation method thereof - Google Patents
Phenolic aldehyde sphere/polypropylene composite material and preparation method thereof Download PDFInfo
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- CN103694558A CN103694558A CN201310652909.0A CN201310652909A CN103694558A CN 103694558 A CN103694558 A CN 103694558A CN 201310652909 A CN201310652909 A CN 201310652909A CN 103694558 A CN103694558 A CN 103694558A
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- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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Abstract
The invention relates to a phenolic aldehyde sphere/polypropylene composite material and a preparation method thereof, and particularly relates to a modified polypropylene composite material and the preparation method thereof, aiming at solving the problems of low rigidity and modulus of the existing modified polypropylene composite material. The phenolic aldehyde sphere/polypropylene composite material is prepared from the following components by mass percent: 70%-93% of polypropylene, 5%-15% of maleic anhydride grafted polypropylene, 1%-20% of phenolic aldehyde sphere and 0.1%-3% of antioxidant. The preparation method comprises steps of firstly, weighing the raw materials; secondly, stoving the polypropylene, washing and drying the phenolic aldehyde sphere; thirdly, uniformly mixing the raw materials in a low-speed mixer, then extruding the composite material by a twin-screw extruder, prilling and moulding so as to prepare the composite material. The phenolic aldehyde sphere/polypropylene composite material has good mechanical property, and can be used as materials of automobile accessories, electrical equipment and engineering construction.
Description
Technical field
The present invention relates to a kind of matrix material and preparation method thereof, be specifically related to polypropylene composite material of a kind of modification and preparation method thereof.
Background technology
Polypropylene (Polypropylene, PP) as a kind of commodity polymer material, high with intensity, good heat resistance, relative density is little, easily processing and the advantage such as cheap, become one of thermoplastic macromolecule material of tool development prospect, and become the polyethylene that continues, the third-largest general-purpose plastics after polyvinyl chloride, be the fastest kind of increase of production in plastics, and be widely used in all respects of national economy.But plain polypropylene poor toughness, fragile under low temperature splitting, has limited the further application of polypropylene in a lot of fields.Therefore along with polypropylene material demand improves constantly, and to the requirement of polypropylene material performance, improve, polypropylene is carried out to modification, preparation high-performance, functional poly propylene matrix material, just becomes the focus that academia and business circles are paid close attention to.
At present, the modified particle adding in polypropylene material mainly comprises: the mineral fillers such as calcium carbonate, talcum powder, mica powder, wollastonite, and to reach performances such as improving polyacrylic hardness, tensile strength, modulus.And these mineral filler relative densities are large, these mineral fillers are joined in phase emergencing copolymer, make the matrix material relative density of preparation large, make quality product rise, as be applied in the industries such as automobile, building, aerospace, can make energy-output ratio strengthen, and then cause the pollution of environment; If add inorganic materials in polypropylene, generally need first inorganic materials to be carried out to finishing, just can be better and polypropylene carry out compound, complicated process of preparation.
Summary of the invention
The present invention seeks in order to solve rigidity and the lower problem of modulus of existing modified polypropylene composite material, and a kind of phenolic aldehyde ball/polypropylene composite material and preparation method thereof is provided.
Phenolic aldehyde ball/polypropylene composite material of the present invention is by mass percentage by 70%～93% polypropylene, 5%～15% maleic anhydride inoculated polypropylene, and 1%～20% phenolic aldehyde ball and 0.1%～3% oxidation inhibitor are made.
The preparation method of phenolic aldehyde ball/polypropylene composite material of the present invention follows these steps to realize:
One, take by mass percentage 70%～93% polypropylene, 5%～15% maleic anhydride inoculated polypropylene, 1%～20% phenolic aldehyde ball and 0.1%～3% oxidation inhibitor are as raw material;
Two, the polypropylene in raw material being put into electric heating constant-temperature blowing drying box dries, obtain dry polypropylene, phenolic aldehyde ball is placed in to dehydrated alcohol and soaks 1.5～2.5 hours, washing after supersound process 20～40min, dry obtain pretreated phenolic aldehyde ball;
Three, dry polypropylene, pretreated phenolic aldehyde ball, maleic anhydride inoculated polypropylene and oxidation inhibitor are placed in to low speed mixer, under the condition that is 5.0～20.0r/min at rotating speed, mix, then the raw material mixing is added in twin screw extruder, the matrix material of extruding is through the pelletizing of cold cut machine, then obtains phenolic aldehyde ball/polypropylene composite material by injector moulding.
Phenolic aldehyde ball/polypropylene composite material of the present invention has good mechanical property, stable performance, and the advantage such as suitability is strong, can be used as the materials such as auto parts machinery, electrical equipment, engineering construction.Phenolic aldehyde ball in raw material, as organic filler, before adding polypropylene, do not need surface modification just can in melt blending process, be combined with polypropylene, so the preparation method that this invention provides is easy and simple to handle, and technique is simple, has good industrial prospect.The tensile strength of the phenolic aldehyde ball/polypropylene composite material making can reach 20～40MPa, shock strength is 250～350J/m, and flexural strength is 40～70MPa, and modulus in flexure is 1300～1900MPa, and over-all properties is good.
Accompanying drawing explanation
Fig. 1 is the SEM figure of phenolic aldehyde ball/polypropylene composite material of obtaining of embodiment 6.
Embodiment
Embodiment one: present embodiment phenolic aldehyde ball/polypropylene composite material is by mass percentage by 70%～93% polypropylene, 5%～15% maleic anhydride inoculated polypropylene, 1%～20% phenolic aldehyde ball and 0.1%～3% oxidation inhibitor are made.
Phenolic aldehyde ball in present embodiment is little with inorganic filler particle phase specific density, quality is light, and there is the advantages such as good cohesiveness, wear resistance, high thermal resistance, chemical stability, electrical insulating property, higher rigidity and modulus, phenolic aldehyde ball is applied in polypropylene product, can improve product mechanical property, reduce polypropylene product quality, reduce the consumption of the energy, and reach the object of environmental protection, take phenolic aldehyde ball as organic filler simultaneously, before adding polypropylene, do not need surface modification just can in melt blending process, be combined well with polypropylene.
Embodiment two: present embodiment is different from embodiment one is that phenolic aldehyde ball/polypropylene composite material is by mass percentage by 75%～90% polypropylene, 8%～12% maleic anhydride inoculated polypropylene, 1%～12% phenolic aldehyde ball and 0.1%～2% oxidation inhibitor are made.
Embodiment three: present embodiment is different from embodiment one be phenolic aldehyde ball/polypropylene composite material by mass percentage by 83% polypropylene, 10% maleic anhydride inoculated polypropylene, 6% phenolic aldehyde ball and 1% oxidation inhibitor are made.
Embodiment four: the preparation method of present embodiment phenolic aldehyde ball/polypropylene composite material follows these steps to implement:
One, take by mass percentage 70%～93% polypropylene, 5%～15% maleic anhydride inoculated polypropylene, 1%～20% phenolic aldehyde ball and 0.1%～3% oxidation inhibitor are as raw material;
Two, the polypropylene in raw material being put into electric heating constant-temperature blowing drying box dries, obtain dry polypropylene, phenolic aldehyde ball is placed in to dehydrated alcohol and soaks 1.5～2.5 hours, washing after supersound process 20～40min, dry obtain pretreated phenolic aldehyde ball;
Three, dry polypropylene, pretreated phenolic aldehyde ball, maleic anhydride inoculated polypropylene and oxidation inhibitor are placed in to low speed mixer, under the condition that is 5.0～20.0r/min at rotating speed, mix, then the raw material mixing is added in twin screw extruder, the matrix material of extruding is through the pelletizing of cold cut machine, then obtains phenolic aldehyde ball/polypropylene composite material by injector moulding.
Phenolic aldehyde ball in present embodiment raw material is to be on July 19th, 2011 by the applying date, application number: 201110202143.7, denomination of invention: the preparation method of phenolic resin microspheres and utilize the preparation method of the phenolic resin microspheres described in its method of preparing alkyd resin based carbon ball to obtain.
Embodiment five: what present embodiment was different from embodiment four is that in step 1 raw material, polyacrylic melting index is 1～5g/10min.Other step and parameter are identical with embodiment four.
Melting index described in present embodiment is to measure with ASTM D1238 standard, and the instrument that test is selected is Melt Flow Rate Measurer XRL-400C.
Embodiment six: present embodiment is different from embodiment four or five is that oxidation inhibitor in step 1 raw material is antioxidant 1010.Other step and parameter are identical with embodiment four or five.
Embodiment seven: present embodiment is different from one of embodiment four to six is that step 2 polypropylene is put into electric heating constant-temperature blowing drying box and dried, employing be 60 ℃ of oven dry.Other step and parameter are identical with one of embodiment four to six.
Embodiment eight: what present embodiment was different from one of embodiment four to seven is that the raw material that step 3 mixes adds in twin screw extruder, wherein the feeding machine rotating speed on twin screw extruder is 60～100r/min, and screw speed is 10～30r/min.Other step and parameter are identical with one of embodiment four to seven.
Embodiment nine: what present embodiment was different from one of embodiment four to eight is that the raw material that step 3 mixes adds in twin screw extruder, the temperature of controlling in twin screw extruder is 160～210 ℃.Other step and parameter are identical with one of embodiment four to eight.
The raw material that present embodiment mixes, through the high shear of twin screw extruder, is dispersed in polypropylene phenolic aldehyde ball uniformly.
Adopt following examples to verify beneficial effect of the present invention:
Embodiment 1: the preparation method of the present embodiment phenolic aldehyde ball/polypropylene composite material follows these steps to implement:
One, take by mass percentage 88% polypropylene, 10% maleic anhydride inoculated polypropylene, 1% phenolic aldehyde ball and 1% oxidation inhibitor are as raw material;
Two, the polypropylene in raw material is put into electric heating constant-temperature blowing drying box with 60 ℃ of oven dry, obtained dry polypropylene, phenolic aldehyde ball is placed in to dehydrated alcohol and soaks 2 hours, washing after supersound process 30min, dry obtain pretreated phenolic aldehyde ball;
Three, dry polypropylene, pretreated phenolic aldehyde ball, maleic anhydride inoculated polypropylene and oxidation inhibitor are placed in to low speed mixer, under the condition that is 10r/min at rotating speed, mix, then the raw material mixing is added in twin screw extruder, the matrix material of extruding is through the pelletizing of cold cut machine, then obtains phenolic aldehyde ball/polypropylene composite material by injector moulding.
Embodiment 2: the present embodiment as different from Example 1 step 1 takes 87% polypropylene by mass percentage, 10% maleic anhydride inoculated polypropylene, and 2% phenolic aldehyde ball and 1% oxidation inhibitor are as raw material.Other step and parameter are identical with embodiment 1.
Embodiment 3: the present embodiment as different from Example 1 step 1 takes 86% polypropylene by mass percentage, 10% maleic anhydride inoculated polypropylene, and 3% phenolic aldehyde ball and 1% oxidation inhibitor are as raw material.Other step and parameter are identical with embodiment 1.
Embodiment 4: the present embodiment as different from Example 1 step 1 takes 85% polypropylene by mass percentage, 10% maleic anhydride inoculated polypropylene, and 4% phenolic aldehyde ball and 1% oxidation inhibitor are as raw material.Other step and parameter are identical with embodiment 1.
Embodiment 5: the present embodiment as different from Example 1 step 1 takes 84% polypropylene by mass percentage, 10% maleic anhydride inoculated polypropylene, and 5% phenolic aldehyde ball and 1% oxidation inhibitor are as raw material.Other step and parameter are identical with embodiment 1.
Embodiment 6: the present embodiment as different from Example 1 step 1 takes 83% polypropylene by mass percentage, 10% maleic anhydride inoculated polypropylene, and 6% phenolic aldehyde ball and 1% oxidation inhibitor are as raw material.Other step and parameter are identical with embodiment 1.
As shown in Figure 1, from then on figure can find out that phenolic aldehyde ball is uniformly dispersed in polypropylene to the SEM figure of phenolic aldehyde ball/polypropylene composite material that the present embodiment obtains, and interfacial bonding property is good.
Embodiment 7: the present embodiment as different from Example 1 step 1 takes 82% polypropylene by mass percentage, 10% maleic anhydride inoculated polypropylene, and 7% phenolic aldehyde ball and 1% oxidation inhibitor are as raw material.Other step and parameter are identical with embodiment 1.
Embodiment 8: the present embodiment as different from Example 1 step 1 takes 80% polypropylene by mass percentage, 10% maleic anhydride inoculated polypropylene, and 9% phenolic aldehyde ball and 1% oxidation inhibitor are as raw material.Other step and parameter are identical with embodiment 1.
Phenolic aldehyde ball/polypropylene composite material that embodiment 1-8 is obtained is placed 24 hours in sample chamber as sample, sample chamber temperature remains on 23 ℃, relative humidity is at 50 ℃, sample testing shore hardness, shock strength, tensile strength and flexural strength are undertaken by ASTM D2240, ASTM D256, ASTM D638 and ASTM D790 standard respectively, and test result is in Table 1.
Table 1
Higher by the known phenolic aldehyde ball/polypropylene composite material rigidity of upper table and modulus, embody good mechanical property.
Claims (8)
1. phenolic aldehyde ball/polypropylene composite material, is characterized in that phenolic aldehyde ball/polypropylene composite material is by mass percentage by 70%～93% polypropylene, 5%～15% maleic anhydride inoculated polypropylene, and 1%～20% phenolic aldehyde ball and 0.1%～3% oxidation inhibitor are made.
2. a kind of phenolic aldehyde ball/polypropylene composite material according to claim 1, it is characterized in that phenolic aldehyde ball/polypropylene composite material is by mass percentage by 75%～90% polypropylene, 8%～12% maleic anhydride inoculated polypropylene, 1%～12% phenolic aldehyde ball and 0.1%～2% oxidation inhibitor are made.
3. a kind of phenolic aldehyde ball/polypropylene composite material according to claim 1, is characterized in that phenolic aldehyde ball/polypropylene composite material is by mass percentage by 83% polypropylene, 10% maleic anhydride inoculated polypropylene, and 6% phenolic aldehyde ball and 1% oxidation inhibitor are made.
4. the preparation method of a kind of phenolic aldehyde ball/polypropylene composite material as claimed in claim 1, is characterized in that the preparation method of phenolic aldehyde ball/polypropylene composite material follows these steps to realize:
One, take by mass percentage 70%～93% polypropylene, 5%～15% maleic anhydride inoculated polypropylene, 1%～20% phenolic aldehyde ball and 0.1%～3% oxidation inhibitor are as raw material;
Two, the polypropylene in raw material being put into electric heating constant-temperature blowing drying box dries, obtain dry polypropylene, phenolic aldehyde ball is placed in to dehydrated alcohol and soaks 1.5～2.5 hours, washing after supersound process 20～40min, dry obtain pretreated phenolic aldehyde ball;
Three, dry polypropylene, pretreated phenolic aldehyde ball, maleic anhydride inoculated polypropylene and oxidation inhibitor are placed in to low speed mixer, under the condition that is 5.0～20.0r/min at rotating speed, mix, then the raw material mixing is added in twin screw extruder, the matrix material of extruding is through the pelletizing of cold cut machine, then obtains phenolic aldehyde ball/polypropylene composite material by injector moulding.
5. the preparation method of a kind of phenolic aldehyde ball/polypropylene composite material according to claim 4, is characterized in that in step 1 raw material, polyacrylic melting index is 1～5g/10min.
6. the preparation method of a kind of phenolic aldehyde ball/polypropylene composite material according to claim 4, is characterized in that the oxidation inhibitor in step 1 raw material is antioxidant 1010.
7. the preparation method of a kind of phenolic aldehyde ball/polypropylene composite material according to claim 4, is characterized in that step 2 polypropylene puts into electric heating constant-temperature blowing drying box and dry, employing be 60 ℃ of oven dry.
8. the preparation method of a kind of phenolic aldehyde ball/polypropylene composite material according to claim 4, it is characterized in that the raw material that step 3 mixes adds in twin screw extruder, wherein the feeding machine rotating speed on twin screw extruder is 60～100r/min, and screw speed is 10～30r/min.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104877223A (en) * | 2015-06-11 | 2015-09-02 | 黑龙江大学 | Composite enhancing high density polyethylene material and preparation method thereof |
| CN108587050A (en) * | 2018-05-08 | 2018-09-28 | 苏州国立塑料制品有限公司 | A kind of preparation method of electrical accessorie composite material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104877223A (en) * | 2015-06-11 | 2015-09-02 | 黑龙江大学 | Composite enhancing high density polyethylene material and preparation method thereof |
| CN108587050A (en) * | 2018-05-08 | 2018-09-28 | 苏州国立塑料制品有限公司 | A kind of preparation method of electrical accessorie composite material |
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Inventor after: Jin Zheng Inventor after: Wu Di Inventor after: Ma Haiqing Inventor after: Li Wenlong Inventor after: Zhao Jing Inventor before: Jin Zheng Inventor before: Ma Haiqing Inventor before: Li Wenlong Inventor before: Wu Di Inventor before: Zhao Jing |
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